基于线激光多目立体视觉的船舶曲板成形在位检测与自动调形系统开发
2020-10-21
作者：赵顺顺1，郭志飞2，李品1，王霄1，刘会霞1，朱元超1
单位：1江苏大学；2河北机电职业技术学院
摘要：为实现数控三维弯板机渐进成形船舶曲板的快速、精确在位检测与自动调形，研制了适用于数控三维弯板机加工现场的基于线激光多目立体视觉技术的在位检测与自动调形系统。设计了检测系统方案与结构参数，研究了系统标定、线激光三维重建、点云配准、船板成形偏差与板材回弹量计算等关键技术，开发了基于Windows平台的在位检测与自动调形软件系统。结果表明，该系统测量误差小于±1mm，单次测量时间小于30s，视场大于弯板机加工区域2750mm×2750mm，满足数控三维弯板机加工过程中船板在位检测与自动调形需求。
关键词：三维弯板机；船舶曲板；在位检测；多目；立体视觉
中图分类号：TG806；TH161.21文献标志码：ADOI：10.3969/j.issn.1000-7008.2020.06.018
Development of Onsite Detection and Automatic Shape Adjustment System for
Formed Hull Plates Based on Line Laser Multicamer Stereovision
Zhao Shunshun，Guo Zhifei，Li Pin，Wang Xiao，Liu Huixia，Zhu Yuanchao
Abstract:In order to realize the fast and accurate onsite detection and automatic shape adjustment of hull plate formed by 3D ship hull plate bending machine，an onsite detection and automatic shape adjustment system based on line laser multicamer stereovision technology is developed，which is suitable for 3D ship hull plate bending machine.The detection system scheme and structural parameters is designed.System calibration，line laser 3D reconstruction，point cloud registration，ship plate forming deviation and plate springback calculation，and other key technologies are researched.The system test results show that the measurement error of the system is less than±1mm，the single measurement time is less than 30s，and the field of view is larger than the machining area of the bending machine 2750mm×2750mm.It satisfies the requirements of onsite detection and automatic shape adjustment of ship plate in the machining process.
Keywords:3D ship hull plate bending machine；hull plate；onsite detection；multicamer；stereovision